Distribution:
Distribution Comments:
Luta Chert is associated with the Luta Limestone Member of the
Winfield Formation of
central to southern Kansas and northern Oklahoma. Primarily occurs
as nodular chert concretions along Luta Creek, a tributary of Antelope
Creek, Marion County, Kansas. The Winfield
Formation was originally this was called the
Marion Flint Formation for exposures near Marion, Marion County, Kansas,
but was re-named Winfield Formation due to the overuse of the Marion
name. It was named Winfield for exposures near Winfield, Cowley
County, Kansas.